<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="css/task3.css">
    <meta name="viewport" content="width=device-width,initial-scale=1">
</head>
<body>
<header>
    <span class="a">关闭</span>
    <span class="b">登录</span>
    <span class="c">注册</span>
    <div class="clear"></div>
</header>
<main>
    <div class="s">
        <div class="z1"><input class="y1" type="text" placeholder="   请输入手机号" ></div>
    </div>
    <div class="x">
        <div class="z2"><input class="y2" placeholder="请输入密码" type="password"></div>
    </div>
    <footer>
        <button>登录</button>
        <div id="last"><a href="#">忘记密码？</a></div>
    </footer>
</main>
</body>
</html>